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JPL Small-Body Database Browser
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978 Aidamina (A922 KE)
Classification: Outer Main-belt Asteroid          SPK-ID: 2000978
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2328038876555705 3.7725e-08  
a 3.201941277798706 1.5929e-08 au
q 2.456516900282322 1.2117e-07 au
i 21.63486044224464 4.7832e-06 deg
node 216.6376263992592 1.0569e-05 deg
peri 132.6508474253026 1.4289e-05 deg
M 257.4716251356671 1.1575e-05 deg
tp 2459196.518917047699
(2020-Dec-13.01891705)
7.0358e-05 TDB
period 2092.755399869447
5.73
1.5617e-05
4.276e-08
d
yr
n .1720220146236192 1.2837e-09 deg/d
Q 3.94736565531509 1.9638e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2489  
   data-arc span      41182 days (112.75 yr)  
   first obs. used      1906-11-17  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41312  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:13:50  

Additional Information
 Earth MOID = 1.50223 au 
 Jupiter MOID = 1.7685 au 
 T_jup = 3.043 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.6   n/a MPO492761 IRAS observations used: 17
diameter diameter 92.105 km 0.764 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 10.099 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[LeCrone, C.; Duncan, A.; Kirkpatrick, E. (2004) Minor Planet Bull. 31, 77-78.]
[Pilcher, F. (2015) Minor Planet Bull. 42, 28.]
geometric albedo albedo 0.027   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.677   0.025 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=.94, mean=1.01, max.=1.08) deg.
U-B UB 0.252   0.098 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=.94, mean=1.01, max.=1.08) deg.
Tholen spectral type spec_T PF   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo

978 Aidamina (A922 KE)          Discovered 1922-May-18 by Belyavskij, S. at Simeis
Independent discovery May 30 by M. Wolf, Heidelberg, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A922 KE = 1929 YA = 1946 QD = 1966 BD = A906 VB = A923 YA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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